This coffee machine encountered at the University of Lausanne (thanks Olivier G. for pointing me this example) seems like an interesting example of an everyday situation reconfigured by digital technology. Apart from cash, coffee drinkers can use their RFID "campus card" (see the plastic things that hold the card on the reader), which also happens to open door and pay restaurants among other tasks:

Why do I blog this? documenting the digital everyday, as mundane as it may be.